In MATLAB you can hold differently sized data in a cell array . The data inside can be of any class and of any size, but you need to pay careful attention to the indexing . Here is a simple example that does something like you want to do:
A = {[1,2],[3,4;5,6],[7;8;9]};
The cell array A contains three numeric arrays of different sizes. You can retrieve any one of these arrays using cell indexing:
>> A{2}
ans = [3,4;5,6]
>> cellfun(@numel,A)
ans = [2,4,3]
